This document provides an overview and deployment guide for Citrix NetScaler application delivery controllers (ADCs). It discusses the NetScaler editions, features, hardware options, typical network topology, and basic traffic management and configuration. The NetScaler acts as a load balancer and content switch in front of web, application, and database servers. It can operate in inline or one-arm deployment modes and provides features like load balancing, caching, compression, and web application firewall capabilities to optimize application delivery and security. The document provides guidance on initial NetScaler configuration using the command line interface or graphical user interface.